rack INFINITI FX35 2004 Service Manual

PS-28
POWER STEERING GEAR AND LINKAGE
Revision: 2004 November 2004 FX35/FX45
9. Use a rear cover wrench (SST), install rear cover to gear housing assembly.
10. Confirm projection on rear cover cap nearly fit with marking position on gear housing assembly.
11 . A p p l y t h r e a d l o c k i n g a d h e s i v e ( T h r e e B o u n d T B 1111 B o r e q u i v -
alent. Refer to GI-48
) to the thread of adjusting screw to the
adjusting screw height from gear housing assembly. The adjust-
ing screw height is the same as it was measured in the overhaul
in advance.
12. Rotate pinion ten times whole range of rack so that parts get to
fit with each other.
13. Measure pinion rotating torque within from –180° to +180°,
make preload gauge (SST) and torque adapter (SST) in rack
neutral position, then hold preload gauge (SST) at maximum
torque.
14. After loosening adjusting screw once, tighten it again with torque
of 5.4 N·m (0.55 kg-m, 48 in-lb). After that loosen it within 20° to
40°.
15. Measure pinion rotating torque with torque adapter (SST) and
preload gauge (SST), then confirm whether it's reading is within
the specified value. If the reading is not within the specified
value, readjust screw angle with adjusting screw. Change gear
assembly to new one, if the reading is still not within the speci-
fied value or the rotating torque of adjusting screw is less than 5
N·m (0.51 kg-m, 44 in-lb).
16. Turn pinion fully to the end of the left with inner socket to gear housing assembly.
17. Set dial gauge to rack as shown in the figure. Measure vertical
movement of rack when pinion is turned counterclockwise with
torque of 19.6 N·m (2.0 kg-m, 14 ft-lb). Check reading is within
the specified value. If reading is outside of the specification,
readjust screw angle with adjusting screw. If reading is still out-
side of specification, or if the rotating torque of adjusting screw is
less than 5 N·m (0.51 kg-m, 44 in-lb), replace steering gear
assembly.
SGIA0568E
SGIA0483E
Pinion rotating torque:
Around neutral position (within±100°)
Average “A”:
0.8 − 2.0 N·m (0.09 − 0.20 kg-m, 7 − 17 in-lb)
Other than above (more than±100°)
Maximum variation “B”:
2.3 N·m (0.23 kg-m, 20 in-lb)
SGIA0160E
SGIA0484E

POWER STEERING GEAR AND LINKAGE
PS-29
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2004 November 2004 FX35/FX45
18. Install large-diameter side of boot to gear housing assembly.
19. Install small-diameter side of boot to the mounting groove of
inner socket boot.
20. Install boot clamp to the small-diameter side of boot.
21. Install boot clamp to the large-diameter side of boot.
NOTE:
Do not reuse boot clamp.
a. Tighten large-diameter side of RH/LH boot with boot clamp
(stainless wire).
b. After wrapping clamp around boot groove for two turns, insert
screwdriver in loop on both ends of wire. Twist 4 to 4.5 turns
while pulling with a force of approx. 98 N (10 kg, 22.1 lb).
c. Twist boot clamp as shown in the figure, pay attention to rela-
tionship between winding and twisting directions.
22. Install cylinder tubes to gear housing assembly.
23. Install lock nut and outer socket to inner socket.Amount of vertical movement with rack Less than 0.265 mm (0.010 in)
Measuring pointAxial direction of rack 5 mm (0.197 in) away from
end of gear housing
Radius direction of rack Shaft direction of adjust-
ing screw
SGIA0550E
Wire length “L” : 390 mm (15.35 in)
SGIA0163E
SGIA0164E
SGIA0544E

POWER STEERING OIL PUMP
PS-33
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2004 November 2004 FX35/FX45
4. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-41,
"HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-41, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.

After installation, adjust belt tension. Refer to EM-15, "DRIVE BELTS" .

After installation, bleed air. Refer to PS-8, "Air Bleeding Hydraulic System" .
Removal and Installation (VK45DE models)AGS000HJ
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Remove power steering oil pump belt from auto tensioner. Refer to EM-169, "
DRIVE BELTS" .
3. Drain power steering fluid from reservoir tank.
4. Remove piping of high pressure and low pressure from power steering oil pump (drain fluid from their pip-
ings). Refer to PS-41, "
HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-41, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.
After installation, bleed air. Refer to PS-8, "
Air Bleeding Hydraulic System" .
NOTE:
Adjustment of belt tension is no necessary because engine of this model equips auto tensioner.
Disassembly and Assembly (VQ35DE models)AGS000HE
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only if the following items are found.

Oil leakage from oil pump

Deformed or damaged pulley
1. Rear cover 2. Teflon ring 3. O-ring
4. Rear side plate 5. Rotor snap ring 6. Dowel pin
7. Cam ring 8. Rotor 9. Vane
10. Cartridge 11. Front side plate 12. O-ring
13. Flow control valve A 14. Spring 15. Flow control valve B assembly
16. Body assembly 17. Oil seal 18. Pulley
19. O-ring 20. Suction pipe 21. Bracket
SGIA0622E

PS-34
POWER STEERING OIL PUMP
Revision: 2004 November 2004 FX35/FX45

Poor performance
DISASSEMBLY
NOTE:
Fix oil pump in vise as the occasion demands.
CAUTION:
When retaining drive shaft in a vise, always use copper or aluminum plates between vise and shaft.
1. Unscrew four rear cover bolts and remove rear cover from body assembly.
2. Remove rear side plate from cartridge, then remove Teflon ring and O-ring from rear side plate.
3. Remove rotor snap ring with snap ring pliers, and remove pulley
from body assembly.
CAUTION:
When removing rotor snap ring, be careful not to damage
pulley shaft.
4. Remove oil seal from body assembly.
5. Remove cam ring, rotor, vane, front side plate, flow control valve
A, spring, flow control valve B assembly and O-ring from body
assembly.
CAUTION:
Be careful not to drop and deform flow control valve A and
flow control valve B assembly.
6. Remove suction pipe from body assembly.
7. Remove O-ring from suction pipe.
8. Remove bracket from body assembly.
INSPECTION AFTER DISASSEMBLY
Body Assembly and Rear Cover Inspection
Check body assembly and the inside of rear cover for damage. If any damage is found, replace with new part
for rear cover, and replace with new power steering pump assembly for body assembly.
Cartridge Assembly Inspection
Check cam ring, side plate, rotor and vane for damage. If any damage is found, replace cartridge assembly
with new one.
ASSEMBLY
NOTE:
Fix oil pump in vise as occasion demands.
CAUTION:
When retaining drive shaft in a vise, always use copper or aluminum plates between vise and shaft.
1. Apply Genuine Nissan PSF or equivalent to oil seal lip and to the
circumference of oil seal. Using a drift (SST), install oil seal to
body assembly.
NOTE:
Do not reuse oil seal.
2. If dowel pin has been removed, insert it into body assembly by
hand. If it cannot be inserted by hand, lightly tap with a hammer.
SGIA0059E
SGIA0526E
SGIA0527E

PS-36
POWER STEERING OIL PUMP
Revision: 2004 November 2004 FX35/FX45
8. Install vane to rotor with facing the round portion outside.
9. Using a hammer and a 10 mm (0.39 in) box, install rotor snap
ring to slot in pulley shaft.
NOTE:
Do not reuse snap ring.
CAUTION:
Be careful not to damage rotor and pulley shaft.
10. Match dowel pin A on flow control valve A, shown in the figure,
with cutout B of rear side plate and install rear side plate to car-
tridge.
11. Apply Genuine Nissan PSF or equivalent to O-ring and install O-
ring into rear side plate.
NOTE:
Do not reuse O-ring.
12. Apply Genuine Nissan PSF or equivalent to Teflon ring and
Install Teflon ring into rear side plate.
NOTE:
Do not reuse Teflon ring.
13. Position rear cover on body assembly and tighten mounting bolts to specified torque.
14. Apply Genuine Nissan PSF or equivalent to O-ring and install O-ring into suction pipe.
NOTE:
Do not reuse O-ring.
15. Install suction pipe into body assembly.
16. Install bracket to body assembly and tighten mounting bolts to specified torque.
SST843A
SGIA0063E
SGIA0530E

POWER STEERING OIL PUMP
PS-37
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2004 November 2004 FX35/FX45
Disassembly and Assembly (VK45DE models)AGS000H4
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only if the following items are found.

Oil leakage from oil pump.

Deformed or damaged pulley

Poor performance
DISASSEMBLY
NOTE:
Fix oil pump in vise as the occasion demands.
CAUTION:
When retaining drive shaft in a vise, always use copper or aluminum plates between vise and shaft.
1. Unscrew three bracket bolts and remove bracket from rear cover.
2. Unscrew four rear cover bolts and remove rear cover from body assembly.
3. Remove gasket from body assembly.
4. Remove lock pin, cartridge and side plate from body assembly.
5. Remove pulley from drive shaft assembly.
1. Bracket 2. Rear cover 3. Gasket
4. Lock pin 5. Cam ring 6. Rotor
7. Vane 8. Cartridge 9. Side plate
10. O-ring 11. Body assembly 12. Oil seal
13. Drive shaft assembly 14. Snap ring 15. Pulley
16. Spring washer 17. Spring 18. Flow control valve
19. O-ring 20. Connector bolt 21. Joint
22. Washer 23. Suction pipe 24. O-ring
SGIA0523E

PS-40
POWER STEERING OIL PUMP
Revision: 2004 November 2004 FX35/FX45

When installing rotor, turn punch mark face on rotor to body
assembly.
7. Install vane to rotor with facing the round portion outside.
8. Check if drive shaft assembly turns smoothly.
9. Install gasket to body assembly.
NOTE:
Do not reuse gasket.
10. Install rear cover to body assembly and tighten bolts at the spec-
ified torque.
11. Install bracket to rear cover and tighten bolts at the specified
torque.
12. Install pulley to drive shaft assembly then tighten lock nut at the
specified torque.
13. Install spring, flow control valve, O-ring, connector bolt, joint,
washer to body assembly. Then tighten lock nut at the specified
torque.
NOTE:
Do not reuse O-ring.
14. Apply a coat of Nissan PSF or equivalent to O-ring and Install O-ring to suction pipe.
NOTE:
Do not reuse O-ring.
15. Install suction pipe to body assembly.
SGIA0424E
SST843A
SGIA0425E

HYDRAULIC LINE
PS-41
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2004 November 2004 FX35/FX45
HYDRAULIC LINEPFP:49721
ComponentsAGS000H5
VQ35DE 2WD MODEL
SGIA0559E
1. Reservoir tank 2. Reservoir tank bracket 3. Suction hose
4. High pressure hose 5. Oil pump 6. Steering gear assembly

PS-42
HYDRAULIC LINE
Revision: 2004 November 2004 FX35/FX45
VQ35DE AWD MODEL
7. Oil cooler 8. Eye bolt 9. Copper washer
10. Oil pressure sensor
SGIA0560E
1. Reservoir tank 2. Reservoir tank bracket 3. Suction hose
4. High pressure hose 5. Oil pump 6. Steering gear assembly
7. Oil cooler 8. Eye bolt 9. Copper washer
10. Oil pressure sensor

PS-44
HYDRAULIC LINE
Revision: 2004 November 2004 FX35/FX45
ComponentAGS000HF
VK45DE AWD MODEL
SGIA0727E
1. Reservoir tank 2. Suction hose 3. High pressure hose
4. Oil cooler 5. Steering gear assembly 6. Reservoir tank bracket
7. Eye bolt